Dude you're speaking greek to me. Zurk fitting? Mechanical stuff is not my area of experise :) In fact I typically suck at it. I could put the boat on blocks in the front and try to take the winch apart, but I don't even know where to start. This is bvasically the kind of jack I have

http://a1460.g.akamai.net/f/1460/1339/6h/www.cabelas.com/cabelas/en/content/Item/01/75/76/i017576vr01.jpg